Physics - Concepts Flashcards
(7 cards)
1
Q
Isochronous
A
Time period is independent of amplitude.
2
Q
Resonance
A
Occurs when driver frequency = natural frequency
3
Q
Time period in SHM
A
Does not change with amplitude. Isochronous
4
Q
Acceleration in SHM
A
Acceleration acts in an opposite direction to displacement.
5
Q
Damping on resonance
A
The natural frequency decreases, and the maximum amplitude decreases.
6
Q
Good resonance:
A
Microwaves - The microwaves act as the driver frequency and drive the water molecules at their natural frequency, causing resonance.
7
Q
Bad resonance:
A
Bridges can vibrate when the driver frequency of walking / wind equals the natural frequency of the bridge, mechanical resonance occurs.
